1212230222 has 16 divisors (see below), whose sum is σ = 2081581152. Its totient is φ = 518659200.

The previous prime is 1212230219. The next prime is 1212230287. The reversal of 1212230222 is 2220322121.

It is a super-2 number, since 2×1212230222² = 2939004222260338568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212230222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63623 + ... + 80450.

It is an arithmetic number, because the mean of its divisors is an integer number (130098822).

Almost surely, 2^1212230222 is an apocalyptic number.

1212230222 is a deficient number, since it is larger than the sum of its proper divisors (869350930).

1212230222 is a wasteful number, since it uses less digits than its factorization.

1212230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144683.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1212230222 is about 34817.0966911372. The cubic root of 1212230222 is about 1066.2565262812.

Adding to 1212230222 its reverse (2220322121), we get a palindrome (3432552343).

The spelling of 1212230222 in words is "one billion, two hundred twelve million, two hundred thirty thousand, two hundred twenty-two".